CHINT NXM‑800H/3300 800A Molded Case Circuit Breaker – 800A, 3‑Pole, 70kA @ 400V, Thermal‑Magnetic Trip Supplier | SIMPLYBUY
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CHINT NXM‑800H/3300 800A Molded Case Circuit Breaker – 800A, 3‑Pole, 70kA @ 400V, Thermal‑Magnetic Trip
CHINT NXM‑800H/3300 800A Molded Case Circuit Breaker – 800A, 3‑Pole, 70kA @ 400V, Thermal‑Magnetic Trip - Image 2
CHINT NXM‑800H/3300 800A Molded Case Circuit Breaker – 800A, 3‑Pole, 70kA @ 400V, Thermal‑Magnetic Trip - Image 3

CHINT NXM‑800H/3300 800A Molded Case Circuit Breaker – 800A, 3‑Pole, 70kA @ 400V, Thermal‑Magnetic Trip

ParameterValue
Product TypeMolded Case Circuit Breaker (MCCB)
Series / BrandNXM (Kunlun) / CHINT Electric
Model NumberNXM‑800H/3300 800A
Frame Size (AF)800 AF
Number of Poles3‑pole (3P)
Rated Current (In)800A
Rated Operational Voltage (Ue)220/230/240V, 380/400/415V, 690V AC
Rated Insulation Voltage (Ui)800V
Rated Impulse Withstand Voltage (Uimp)8kV
Breaking Capacity (Icu) @ 380/400/415V AC70kA (H‑Class)
Service Breaking Capacity (Ics) @ 380/400/415V AC50kA
Trip Unit TypeThermal‑Magnetic (fixed)
Protection FunctionsOverload, short‑circuit
Connection TypeFront‑connection terminals (板前接线)
MountingFixed
Dimensions (W × H × D)182 mm × 270 mm × 165 mm
Mechanical Life (with maintenance)40,000 operations
Mechanical Life (without maintenance)20,000 operations
Electrical Life10,000 operations
Degree of Protection (IP)IP30 (except terminal connections)
Operating Temperature‑5°C to +40°C
Housing MaterialThermosetting plastic, UL94 V‑0 flame retardant
Standards & CertificationsIEC/EN 60947‑2, GB/T 14048.2; CCC, CE, KEMA, CB, EAC
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CHINT NXM‑800H/3300 800A Molded Case Circuit Breaker – 800A, 3‑Pole, 70kA @ 400V, Thermal‑Magnetic Trip

Manufacturer: CHINT Electric
Model: NXM‑800H/3300 800A
Type: Molded Case Circuit Breaker (MCCB)
Series: NXM (Kunlun Series)
Frame Size: 800 AF
Rated Current (In): 800A
Number of Poles: 3‑pole (3P)
Breaking Capacity (Icu @ 400V AC): 70kA
Trip Unit: Thermal‑Magnetic (fixed)
Application: Power distribution, industrial control panels, and commercial building protection

The CHINT NXM‑800H/3300 800A is a high‑performance molded case circuit breaker from the NXM (Kunlun) series, engineered for reliable overload and short‑circuit protection in industrial and commercial power distribution systems. With an 800A frame and a breaking capacity of 70kA at 400V AC, it delivers robust fault current interruption for demanding applications. The thermal‑magnetic trip unit provides fixed overload protection, while the compact design (182mm × 270mm × 165mm) and front‑connection terminals make it ideal for panel builders seeking a space‑efficient, high‑reliability solution. The NXM series features a thermosetting plastic housing with UL94 V‑0 flame retardant rating, built‑in phase isolation barriers, and compliance with IEC/EN 60947‑2 and CCC standards, suitable for global applications.

  • High Breaking Capacity: Delivers 70kA Icu at 380/400/415V AC (H‑Class), providing reliable protection under demanding short‑circuit conditions.

  • Thermal‑Magnetic Trip Unit: Fixed thermal‑magnetic protection ensures dependable overload and short‑circuit response for industrial power distribution.

  • Compact & Robust Construction: Space‑saving 182mm width with a thermosetting plastic housing (UL94 V‑0 flame retardant) for excellent heat dissipation and mechanical strength.

  • Built‑in Phase Isolation: Integrated phase isolation barriers enhance safety and reduce the risk of arc faults between phases.

  • Front‑Connection Terminals: Fixed front‑wired terminals ensure secure and low‑resistance terminations for high‑current wiring.

  • High Mechanical & Electrical Durability: Mechanical life of up to 40,000 operations (with maintenance) and electrical life of 10,000 operations ensure long‑term reliability.

  • Global Approvals & Compliance: Certified to IEC/EN 60947‑2, CCC, CE, KEMA, CB, and EAC; suitable for worldwide applications.

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